text: // (C) Copyright Jeremy Siek, David Abrahams 2000-2006.
  // Distributed under the Boost Software License, Version 1.0. (See
  // accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt)
  //
  // Change Log:
  // 20 Jan 2001 - Added warning suppression (David Abrahams)
  
  #include "old_concepts.hpp"
  
  // This file verifies that concepts written the old way still catch
  // errors in class context.  This is not expected to work on compilers
  // without SFINAE support.
  
  struct foo { };
  
  class class_requires_test
  {
    BOOST_CLASS_REQUIRE(foo, old, EqualityComparableConcept);
  };
  
  int
  main()
  {
    class_requires_test x;
    (void)x; // suppress unused variable warning
    return 0;
  }
  